Instruction manual

14
Fig. 17 — Thermostat Wiring — 50HJQ014,016 Heat Pump Units
Fig. 18 — Thermostat Wiring — 50EJQ,EWQ024,028 Heat Pump Units
Rc
Rh
W1
G
Y2
C
O/W2/B
Y1
OAT
RRS
SRTN
HUM
D1
D2
V+
Vg
RC
RH
W1
W2
Y1
Y2
G
C
X*
11
TB2
COMMERCIAL THERMOSTAT
R
R
ISOLATION RELAY
*Connection not required.
a33-9178
Rc
Rh
W1
G
Y2
C
O/W2/B
Y1
OAT
RRS
SRTN
HUM
D1
D2
V+
Vg
R
W1
W2
C
Y1
Y2
G
COMMERCIAL THERMOSTAT
TB3
a33-9179